Air-supply device for brooders and the like.



J. F. MAcKAY.

AIR SUPPLY DEVI-CE FOR BROODERS AND THE LIKE,

APPLICATION HLED APR. 14. 1915.

Patented Oct. 2, 1917.

UNITED STATES PATENT. o rrcE.

I JOHN-F. Murra on BORD-E-NTOWN, new JERSEY.

AIR-SUBPLY DEVICE FOR BROQDERS AND THE-LIKE.

, To all whom. it ma concern:

I. matic fresh air supply device for colony 'and other brooders or s m lar structures. Th'eiobj'ect is to enable a stream of. atmospher-ic air to be sup lled automatically as needed and variable m a ount tosuit conditions without the creation of adraft that in every instance is dangerous and often fatal to the chicks. The invention consists, therefore, in an independent thermostatically-operated device adapted to be arranged in relation to a brooder stove having a hood which forms a brooder chamber surrounding the stove, so that accordingly as the heat rises or falls, the proper amount of pure outside air may be. delivered by means of the device intothe brooder cham her; and the invention also comprises numerous details andpeculiarities in the construction arrangement and combination of arts, su s ta ntially as will he hereinafter escribed andthen more particularly Poi ted ou he. a ms In the accompanying drawing illustrating my invention;

re 1 is a vertical section of my impr v a tomat a pp y dev fo colony brooders and the like;

Fig. 2 is a vertical section of a breeder stove'and the hover supported thereon with my improved air supply device sit ated in e brQQd mber q. h s auc o and relative arrangement;

Fig. 3 is a topplan view of the device.

Similar characters of reference designate corresponding parts throughout the different figures of the drawing. At the present time in the ordinary rocs s of aising b to -hatched c. id and with most of the appliances used with spwification of Letters Patent.

residing at Patented Oct. 2, 191-7;

Application filed April 1'4, 1915. Serial N 0. 21,491.

incubators, colony brooders, brooder house systems and other analogous apparatus for the raising of fowl andpoultry,there is no fresh air delivery or supply to any of them. Incubation can be very much, improved by the use of a supply of fresh air, b t the ficulty is to introduce the same where the chicks can use it. without at the same time creating strong draft or air blast, which is apt to kill the birds as. soon as, it strikcs them. l-leretofore there has beenno appl ianco operating automatically to introduce fresh air in a proper. regulated quantity and at the same time not create a dangerous, or injurious draft. My ap li ance cro- 6 ates no draft and can be ma ev large or s1nall, being adaptedfor allsortsof chickenhatching and raising apparatus, and may be used in the chamber of an incubator in a form so small that it does not interfere with the egg trays, and it can also be used in any kind-of a colony brooder, brooderhouse' system, or the like, acting when desired to not only supply the fresh air, but, to sup port the hover and to introduce fresh oxygen into the breeder chamber.

1 designates an upright barrel or cylinderv which constitutes the main casingof my improved airsupplying device. his is designed to be located alongside of a stove. as the stove 23 under the hover 21 which is supported from the top of thestove and inside of the brooder chamber 22 which surrounds the stove, it being obvious that these parts 21,-22, and 23, as shown in Fig. 2, are ofi'ered merely by way of exmple, n out ny th ugh o onfining myself thereto.

The main casing 1 has an open upper end which is provided with a cover'3 acting as 0' an air valve and seated upon the top flange or periphery 24 of the casing 1. Also the upper end of the casing supports a casting 2 .w ich provides a chamber 25 to permit the valve 3 to play up and down vertically 9 therein, and to contain also a portion of the leverage devices for lifting said valve. This casting 2 is furnished with an outlet opening 5 at the top, through which the, air

passes upwardly through the casing 1 and 100 link 19, the other end 0 by the valve 3 may emerge into the brooder chamber or other place where my improved automatic air supply is located. This casing 1 rests at its lower end upon the floor'26 of the colony house. If the floor is of wood or other material that can easily be pierced with a pipe for introducing air from the outside atmosphere, then I find it preferable to follow this practice and allow the air to enter through the opening in the flooring 26 and through the opening 6 into the lower end of the main casing 1; but in cases where the flooring of the colony house or other building is of concrete or .hard paving so that it is not easy to admit the air through it, then I provide the casing 1 near the lower end thereof in its side with an open in 27 to which runs a pipe 9 from some point outside of the house. This openin v 27 may be made in the casing 1 and covers with a plate 8 bolted thereto when the open ing is not in use, leaving the lower opening 6 to be used at this time, but whenever desired the opening 6 can be closed and the I opening 27 used by removing the cover 8;

0bv1ously, therefore, air can enter the lower end either by the bottom or at theside The valve 3 at the top of the device is automatically controlled by a thermostat 16 located at some suitable point where it is exposed to the temperature of the atmosphere within the brooder chamber, so

that it will expand and contract as the degree of heat rises and falls. 10 denotes an example of such a thermostat attached to theoutside wall of the casing 1 near the bottom thereof and having an adjusting screw 11 to regulate the tension of the parts. This thermostat operates the vertical lever '12 ivoted at 14'to a bracket 13 bolted tothe ower part of the wall of casing 1. The upper part of lever 12: is pivoted at 15 to a which is pivoted at 18 to a bent lever 16 pivoted at 1'? on the inside of the top casing 2, said lever 16 having an arm 28 which is loosely attachedto the center or the valve plate 3 by means of a chain 20 or some other suitable means. The link 19 passes through a slot 29 in the wall of casing 2. A weight is fastened beneath the valvefplate 3 so as to assistin returning it to place when the thermostat releases the leversand allows the valve. to

4 close.

The operation will be manifestiroxnthe foregoing description of the tenements and relative arrangement of the various parts; A

I rn eflyfeonneeted with the. outside atmosphere}, so-as to 'allow pure "cold airto enter-"the same, such This? will be discharged through the up er end as the casing 1 and nut' into the nooder chamberthrough the'top opening 5 in quan- When the device isjloc'at'ed under. the hood,'as 21, and

titios which will vary with the degree ofopening of the valve 3, the opening of which will be controlled by the thermostat through the leverage connecting said thermostat with the valve 3; and thus when the brooder chamber becomes well heated, the expansion of the thermostat will push the lever 12 outwardly and this will actuate the crank lever 16 and lift the valve 3 05 its seat 24: so that fresh air will begin to pass into the breeder chamber. The degree at which the thermostat will operate can be .set by means of the screw 11 at any figure, say 160 degrees or otherwise, so that the valve. 3 will open when this temperature is, attained. When the colony brooder fire in the stave 233s low and the degree of heat too low to heat the E'resh air supply which the device delivers to the brooder chamber, the thermostat will contract and thevalve Swill close, but it will. open againassoon as the teni perature in the-breeder rises to a point where it is able to take care -of copieus amounts or fresh air v Various changes maybeiiie "nthe enact constructicn and. relative arr geinent of the various parts withent exceeding the scope of my invention, and l reserve the liberty oi making such changes as may be found desirable, convenient or necessary in the practical application of the invention for producin the best results.

Having thus described my invention, what I claim as new and desire to secure by Let ters "Patent, is:

1. A device for supplying colony or other brooders or like apparatus with pure fresh air, consisting of a main barreladapted to be located in a heated chamber means for admitting fresh air to said barrel, an, outlet valve for said airjlocated within the barrel transversely of the same at a point below the upper end ofthe latter so that an out,- let chamber is provided above said valve, and a thermostatic appliance external to the barrel and within the heated chamber, which automatically supplying fresh air to a breeder, incubator, or like, consisting of a main upright barrel or casing, an outlet valve therein near the upper end consisting of a vertically [movable transverse plate located at distance below the top of the cas ing, therebeing a chamber above said valve, In'eans'for admitting pure air in the lower portion of the main barrel a thermostatic appliance on the outside oi the barrel and subject'to the.infiuenc eof heated air in a brooder or the like, and lever connections between said appliance and the outlet valve for operating the latter.

3, An anti-drait device for supplying pure air'to a broader or the like, consisting of a are his

I vertical barrel having afflanged top, a cover I main" barrel, .an external thermostatic apv restingon said top and vertically movable pliance on said barrel subject to the influence with relation thereto so. as to serve asa of heated air, and lever connections between 10 3 valve, acastingsuppo'rted onithen per end said appliance and the outlet valve whereby r'of the barrel above the-valve serving the latter is opened as required.

as an ontletchamber for the air, means for In testimony whereof I aflix my ature. admitting'cold air t'thelower end of the- JOHN Mao Y. 

